Power control device



Nov. 4, 1941- J. F. STRICKLER, JR 530 POWER CONTROL DEVICE 2 Sheets-Sheet 1 Filed Oct. 8, 1940 gwpcmkw JOHN sm/a/(Lm JR.

4, 1941- J. F. STRICKLER, JR

' POWER CONTROL DEVICE Filed Oct. 8, 1940 2 Sheets-Sheet 2 Throttle off To cock it To en ine throttle I-"' F" E Ti To cockpit V- 3" Supercharger off regumor To cockpit To engine throttle i To cockpit To. supercharger 9/; 4 J M Su erchar er regulator 3 Throttle off p i l I To cockpit To engine throttle it I I ga t-M I I To cockpit To supercharger Supercharger off 4? 4 Y regulator To cockpit To engine throttle o cockpit J To supercharger 2 regulator I Supercharger off 3 JOHN E sTR/ KL ER, JR

Gum/M Patented Nov. 4, 1941 POWER CONTROL DEVICE Jolm F. Strickler, .lr., Kenmore, N. Y., assignor to 7 Bell Aircraft-Corporation, Buffalo, N. Y., a corporation of New York Application October 8, 1940, Serial No. 360,343

I p 8 Claims.

This invention relates to apower control regulator, and more especially to-means whereby two controls of the motive power unit of an airplane may be operated in unison or the movement of one may be controlled independently of the movement of the other.

One of the objects of this invention is to provide a device for linking together the throttle and supercharger controls of an airplane.

Another object of this invention is to provide a device for linking together the throttle and supercharger controls of an airplane, said device being designed in such a manner that the movement of the throttle control is transmitted to the supercharger regulator control when in locked position.

A further object of this invention is to provide a device for linking together the throttle and supercharger controls of an airplane, said device being designed insuch a manner that the supercharger control remains stationary and the supercharger olf regardless of the movement of the throttle control when the device is in unlocked or floating position.

' With these and other objects in view, this invention embraces broadly the concept of providing a device for linking the throttle and supercharger controls which extend from the pilots cockpit of the fuselage to the motive power unit. The device is constructed in such a manner that a movement of the throttle rod is transmitted to the supercharger control when the device is in its locked position. This permits the turbine supercharger to be brought into action simultaneously with the opening of the engine throttle during take-offs or power climbs. However, when the supercharger control is moved to shut the supercharger 01f and is locked there by the pilot, the device is permitted to float which allows the throttle control to be moved without afiecting the supercharger control rod. This condition is often advantageous during level flight.

In the drawings:

Figure 1 discloses a plan view of the power control device attached to the engine and supercharger controls.

Figure 2 is a view taken along line 22 of Figure 1, looking in the direction of the arrows.

Figure 3 is a view taken along line 33 of Figure 2, looking in the direction of the arrows.

Figure 4 is a diagrammatic view disclosing the control device in position for synchronized movement of both throttle and supercharger regulator showing the supercharger off and the throttle closed.

Figure 5 is a similar view showing the supercharger on and the throttle open.

Figure 6 discloses the power control device in position permitting movement of the throttle without movement of the supercharger, showing the supercharger off and throttle closed.

Figure '7 is similar to Figure 6 showing the supercharger off and the throttle open.

As shown in the drawings, the power control device comprises a carburetor control rod l which extendsto the pilots position in the airplane and a throttle rod 2 which extends to the carburetor of the power plant. The rods 1 and 2 are joined to a link 3 by means of turnbuckles 4. This link 3 comprises a part of the control linkage and carries a roller 5 mounted on a stub shaft 6. Directlybelow and parallel to the rods l and 2 is a rod 1 which also extends to the cockpit and a rod 8 which extends to the regulator lever (not shown) on the supercharger of the power plant. v

The rods 1 and 8 are coupled to connector 9 and coupler l0, respectively, in a manner similar to the coupling used in connection with rods I and 2. The members 9 and ID are slidable in respect to each other and are positioned directly below the link 3. The coupler I0 carries a roller ll mounted on a stub shaft l2. The coupler I!) also is provided with an integral stop [3. The connector 9 has a widened cut-out portion I4 and is of such width as to engage the stop I3.

Pivoted upon a pin l6 attached to a suitable portion of the fuselage structure as 15 is an arm l6 provided with a pin I! which projects into the slot Id of the member 9. A pin l8 projects from the structure member I5 and lies in the path of movement of, and is adapted to be engaged by, the free end of the arm 5.

Pivotally carried by the arm l6 upon a pin 20 is a rocker arm I9, provided in its opposite ends with open slots 2| and 22 which are adapted to engage the rollers 5 and II, respectively. The rod 1, as previously stated, extends to the pilots position in the airplane and may be connected with a suitable control lever and locking device which is not shown but, by which, movement to the rod 1 may be imparted.

The operation of the control device may be clearly seen by reference to Figures 4 to 7 of the drawings. In Figure 4 the control rod 1 has been moved forward and the cut-out I4 has caused the arm Hi to be moved so that its free'end engages the pin l8 to hold the arm It in a fixed position. In this position, as seen in Figures 4 which comprises the rods I and 2 and the link 3 may be moved to open or close the throttle of the carburetor. Movement of this control unit will be transferred through the rocker arm l9 to the supercharger regulator unit comprising the rod 8 and the member Ill to either cut in or out the supercharger in synchronization with the throttle. Figure 4 shows the position of the control unit when the throttle is off and the supercharger is off. Figure 5 shows the throttle open and the supercharger on.

If it is desired to operate the throttle without operation of the supercharger, the control rod 1 is moved toward the operator and locked in this position. As a result the member 9 which carries the cut-out I4 is also moved away from the pin l8 which frees the arm 5 for arcuate movement about its pivot I6. These positions are shown in Figures 6 and 7 in which the supercharger has been cut oil and fixed in its oil position by the slotted portion l4 being engaged by the stop l3 of the member ID.

Since in this position there can be no movement of the supercharger regulator control, movement of the throttle control rod l is transmitted through the roller 5 and the rocker arm IE to the arm [6, the arm 19 moving about the roller I l as a pivot.

Figure 6 shows the supercharger off and the throttle control unit moved toward the carburetor to close the throttle. Figure 7 shows the supercharger still ofi while the throttle control unit is moved away from the carburetor to open the throttle.

While for purposes of this invention I have disclosed one means of assembling the device which forms the basis of this invention and one means of attaching this device to the throttle and supercharger controls, it is obvious that this construction is for purposes of illustration only and changes can be made in the structure without departing from the scope of this invention. It is therefore to be understood that this invention is to be only limited by the prior art and the scope of the appended claims.

I claim:

1. A device for regulating the movement of a pair of controls connected to the motive power unit of an airplane comprising a link forming an integral part of one of the said controls, a connector and a coupler slidably associated with each other and forming an integral part of the second of the said controls, a slot formed in said connector, 2. stop mounted on said coupler, said stop engaging said connector when the said members are in extended position, an arm pivotally mounted on an immovable body within the fuselage, a stop mounted on an immovable body within the fuselage and adapted to engage said arm, a pin mounted on said arm and adapted to lie in the slot in the said connector, and a rocker arm mounted on the said arm and designed to connect said connector and coupler.

2. A device for regulating the movement of a pair of controls connected to the motive power unit of an airplane comprising a link joining separated portions of one of the said controls, a connector and a coupler joining separated portions of the second control, said connector and coupler being slidably associated with each other and the connector being joined to the portion of the second control leading away from the motive power unit, a slot formed in said connector, a stop on said coupler, said stop engaging said connector when the connector is drawn into extended position by the operation of the control rod, an arm pivotally mounted on an immovable body within the fuselage, a pin mounted on said arm and adapted to lie in the slot in the said connector, a stop mounted on an immovable body within the fuselage and adapted to engage the said arm, and a rocker arm pivotally mounted at its center portion on said arm and adapted to connect said connector and coupler.

3. A device for regulating the movement of a pair of controls connected to the motive power unit of an airplane comprising a link joining separated portions of one of the said controls, a connector and a coupler joining separated portions of the second control, said connector and coupler being slidably associated with each other and the connector being joined to the portion of the second control leading away from the motive power unit, a slot formed in said connector, a stop on said coupler, said stop engaging said connector when the connector is drawn into extended position by the operation of the control rod, an arm pivotally mounted on an immovable body within the fuselage, a pin mounted on said arm and adapted to lie in the slot in the said connector, a stop mounted on an immovable body within the fuselage and adapted to engage the said arm, and a rocker arm pivotally mounted adj acent its center portion on said arm and adapted to connect said connector and coupler, said second mentioned stop engaging said arm and in cooperation with the pin preventing movement of the arm when the connector is in a non-extended position, thereby permitting the rocker arm to move about its pivotal point, and said pin releasing said arm when the connector is extended thereby preventing the pivotal movement of the rocker arm.

4. A device for regulating the movement of the throttle and supercharger controls which are connected to the motive power unit of an airplane comprising a link joining separated portions of the said throttle control, a connector and a coupler joining separated portions of the supercharger control, said connector and coupler being slidably associated with each other and the connector being joined to the portion of the supercharger control leading away from the motive power unit, a slot formed in the said connector, an arm pivotally mounted on an immovable body within the fuselage, a pin mounted on said arm and adapted to lie in the slot in the said connector, a stop mounted on an immovable body within the fuselage and adapted to engage said arm, and a rocker arm pivotally mounted at its center portion on said arm and adapted to connect said connector and coupler, said stop engaging said arm and in cooperation with the pin preventing movement of the arm when the connector is in a non-extended position, thereby permitting the rocker arm to move about its pivotal point and causing a simultaneous movement of the supercharger control in a direction opposite to that of the throttle control when the throttle control is motivated, and said pin releasing said arm when the connector is in extended position thereby preventing a pivotal movement of the rocker arm and allowing the throttle control to be operated without motivating the supercharger control.

5. A device for regulating the movement of the throttle and supercharger controls which are connected to the motive power unit of, an airplane comprising a link joining separated portions of the said throttle control, a connector of the supercharger control rod, an arm pivotally mounted on an immovable body within the fuselage, a pin mounted on said arm and adapted to lie in the slot in the said connector, a stop mounted on an immovable body within the fuselage and adapted to engage the said arm, and a rocker arm pivotally mounted at its center portion on said arm and adapted to connect said connector and coupler, said second mentioned stop engaging said arm and in cooperation with the pin preventing movement of the arm when the connector is in a non-extended position, thereby permitting the rocker arm to move about its pivotal point and causing a simultaneous movement of the supercharger control in a direction opposite to that of the throttle control when the throttle control is motivated, and said pin releasing said arm when the connector is in extended position thereby preventing a pivotal movement of the rocker arm and allowing the throttle control to be operated without motivating the supercharger control.

6. A device for regulating the movement of the throttle and supercharger controls which are connected to the motive power unit of an airplane comprising a link joining separated portions of the said throttle control, a roller mounted on the said link, a connector and a coupler joining separated portions of the supercharger control, said connector and coupler being slidably associated with each other and the connector being joined to the portion of the supercharger control leading away from the motive power unit, a slot formed in the said connector, a roller mounted on the said coupler, an arm pivotally mounted on an immovable body within the fuselage, a pin mounted on said arm and adapted to lie in the slot in the said connector, a stop mounted on an immovable body within the fuselage and adapted to engage the said arm, and a rocker arm pivotally mounted at its center portion on said arm, said rocker arm engaging the said rollers mounted on the link and coupler, said stop engaging said arm and in cooperation with the pin preventing movement of the arm when the connector is in a non-extended position thereby permitting the rocker arm to move about its pivotal point and causing a simultaneous movement of the supercharger control in a direction opposite to that of the throttle control when the throttle control is motivated, and said pin releasing said arm when the connectoris in extended position thereby preventing a pivotal movement of the rocker arm and allowing the throttle control to be operated without motivating the supercharger control.

'7. A device for regulating the movement of a pair of controls connected to the motive power unit of an airplane comprising a link forming a part of one of the said controls, a connector and a coupler slidably associated with each other and forming a part of the second of the said controls, means associated with said connector and coupler to prevent their separation when in extended position, a slot formed in said connector, an arm pivotally mounted on an immovable body associated with the fuselage, a stop adapted to engage said arm, means mounted on the arm and adapted to lie in the slot in the said connector, and a rocker arm mounted on the said arm and designed to connect said connector and coupler.

8. A device for regulating the movement'of the throttle and supercharger controls which are connected to the motive power unit of an airplane comprising a link joining separated portions of the said throttle control, a roller mounted on said link, a connector and a coupler joining separated portions of the supercharger control, said connector and coupler being slidably associated with each other and the connector being joined to the portion of the supercharger control leading away from the motive power unit whereby the connector can be moved to an extended position by the operation of this control, a slot formed in said connector, a stop and a roller mounted on said coupler, said stop engaging said connector when the connector is drawn into extended position by the operation of the supercharger control rod, an arm pivotally mounted on an immovable body within the fuselage, a pin mounted on said arm and adapted to lie in the slot in the said connector, a stop mounted on an immovable body within the fuselage and adapted to engage the said arm, and a rocker arm pivotally mounted adjacent its center portion on said arm, said rocker arm engaging the said rollers mounted on the link and coupler, said second mentioned stop engaging said arm and in cooperation with the pin preventing movement of the arm when the connector is in a non-extended position thereby permitting the rocker arm to move about its pivotal point. and causing a simultaneous movement of the supercharger control in a direction opposite to that of the throttle control when the throttle control is motivated, and said pin releasing said arm when the connector is in extended position'thereby preventing a pivotal movement of the rocker arm and allowing the throttle control to be operated without motivating the supercharger control.

JOHN F. STRICKLER, JR. 

